Diff of the two buildlogs:

--
--- b1/build.log	2025-01-21 11:54:21.871788025 +0000
+++ b2/build.log	2025-01-21 11:55:50.595788224 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon Feb 23 06:16:26 -12 2026
-I: pbuilder-time-stamp: 1771870586
+I: Current time: Wed Jan 22 01:54:24 +14 2025
+I: pbuilder-time-stamp: 1737460464
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -23,54 +23,86 @@
 dpkg-source: info: unpacking responses_0.25.6-1.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/63246/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/27074/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos2-i386.
+I: Changing host+domainname to test build reproducibility
+I: Adding a custom variable just for the fun of it...
+I: Changing /bin/sh to bash
+'/bin/sh' -> '/bin/bash'
+lrwxrwxrwx 1 root root 9 Jan 21 11:54 /bin/sh -> /bin/bash
+I: Setting pbuilder2's login shell to /bin/bash
+I: Setting pbuilder2's GECOS to second user,second room,second work-phone,second home-phone,second other
+I: user script /srv/workspace/pbuilder/27074/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/27074/tmp/hooks/D02_print_environment starting
 I: set
-  BUILDDIR='/build/reproducible-path'
-  BUILDUSERGECOS='first user,first room,first work-phone,first home-phone,first other'
-  BUILDUSERNAME='pbuilder1'
-  BUILD_ARCH='i386'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=22 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='i386'
+  BASH=/bin/sh
+  BASHOPTS=checkwinsize:cmdhist:complete_fullquote:extquote:force_fignore:globasciiranges:globskipdots:hostcomplete:interactive_comments:patsub_replacement:progcomp:promptvars:sourcepath
+  BASH_ALIASES=()
+  BASH_ARGC=()
+  BASH_ARGV=()
+  BASH_CMDS=()
+  BASH_LINENO=([0]="12" [1]="0")
+  BASH_LOADABLES_PATH=/usr/local/lib/bash:/usr/lib/bash:/opt/local/lib/bash:/usr/pkg/lib/bash:/opt/pkg/lib/bash:.
+  BASH_SOURCE=([0]="/tmp/hooks/D02_print_environment" [1]="/tmp/hooks/D02_print_environment")
+  BASH_VERSINFO=([0]="5" [1]="2" [2]="37" [3]="1" [4]="release" [5]="i686-pc-linux-gnu")
+  BASH_VERSION='5.2.37(1)-release'
+  BUILDDIR=/build/reproducible-path
+  BUILDUSERGECOS='second user,second room,second work-phone,second home-phone,second other'
+  BUILDUSERNAME=pbuilder2
+  BUILD_ARCH=i386
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=10 '
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=i686
+  HOST_ARCH=i386
   IFS=' 	
   '
-  INVOCATION_ID='1ef6dde433e44a309fb670c99740b580'
-  LANG='C'
-  LANGUAGE='en_US:en'
-  LC_ALL='C'
-  LD_LIBRARY_PATH='/usr/lib/libeatmydata'
-  LD_PRELOAD='libeatmydata.so'
-  MAIL='/var/mail/root'
-  OPTIND='1'
-  PATH='/usr/sbin:/usr/bin:/sbin:/bin:/usr/games'
-  PBCURRENTCOMMANDLINEOPERATION='build'
-  PBUILDER_OPERATION='build'
-  PBUILDER_PKGDATADIR='/usr/share/pbuilder'
-  PBUILDER_PKGLIBDIR='/usr/lib/pbuilder'
-  PBUILDER_SYSCONFDIR='/etc'
-  PPID='63246'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=8d1e0c37d13f4bbd801088e34c6a24a2
+  LANG=C
+  LANGUAGE=de_CH:de
+  LC_ALL=C
+  LD_LIBRARY_PATH=/usr/lib/libeatmydata
+  LD_PRELOAD=libeatmydata.so
+  MACHTYPE=i686-pc-linux-gnu
+  MAIL=/var/mail/root
+  OPTERR=1
+  OPTIND=1
+  OSTYPE=linux-gnu
+  PATH=/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path
+  PBCURRENTCOMMANDLINEOPERATION=build
+  PBUILDER_OPERATION=build
+  PBUILDER_PKGDATADIR=/usr/share/pbuilder
+  PBUILDER_PKGLIBDIR=/usr/lib/pbuilder
+  PBUILDER_SYSCONFDIR=/etc
+  PIPESTATUS=([0]="0")
+  POSIXLY_CORRECT=y
+  PPID=27074
   PS4='+ '
-  PWD='/'
-  SHELL='/bin/bash'
-  SHLVL='2'
-  SUDO_COMMAND='/usr/bin/timeout -k 18.1h 18h /usr/bin/ionice -c 3 /usr/bin/nice /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.sQfqvWTF/pbuilderrc_IGFA --distribution unstable --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/unstable-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.sQfqvWTF/b1 --logfile b1/build.log responses_0.25.6-1.dsc'
-  SUDO_GID='112'
-  SUDO_UID='107'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://213.165.73.152:3128'
+  PWD=/
+  SHELL=/bin/bash
+  SHELLOPTS=braceexpand:errexit:hashall:interactive-comments:posix
+  SHLVL=3
+  SUDO_COMMAND='/usr/bin/timeout -k 24.1h 24h /usr/bin/ionice -c 3 /usr/bin/nice -n 11 /usr/bin/unshare --uts -- /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.sQfqvWTF/pbuilderrc_TpQB --distribution unstable --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/unstable-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.sQfqvWTF/b2 --logfile b2/build.log responses_0.25.6-1.dsc'
+  SUDO_GID=112
+  SUDO_UID=107
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://46.16.76.132:3128
 I: uname -a
-  Linux ionos16-i386 6.1.0-30-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.124-1 (2025-01-12) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-30-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.124-1 (2025-01-12) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Nov 22  2024 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/63246/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/27074/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -224,7 +256,7 @@
 Get: 94 http://deb.debian.org/debian unstable/main i386 python3-requests all 2.32.3+dfsg-1 [71.9 kB]
 Get: 95 http://deb.debian.org/debian unstable/main i386 python3-tomli-w all 1.0.0-2 [8012 B]
 Get: 96 http://deb.debian.org/debian unstable/main i386 python3-yaml i386 6.0.2-1+b1 [173 kB]
-Fetched 38.3 MB in 1s (28.2 MB/s)
+Fetched 38.3 MB in 1s (67.0 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package libpython3.13-minimal:i386.
 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19837 files and directories currently installed.)
@@ -548,8 +580,8 @@
 Setting up tzdata (2025a-1) ...
 
 Current default time zone: 'Etc/UTC'
-Local time is now:      Mon Feb 23 18:16:46 UTC 2026.
-Universal Time is now:  Mon Feb 23 18:16:46 UTC 2026.
+Local time is now:      Tue Jan 21 11:54:50 UTC 2025.
+Universal Time is now:  Tue Jan 21 11:54:50 UTC 2025.
 Run 'dpkg-reconfigure tzdata' if you wish to change it.
 
 Setting up autotools-dev (20220109.1) ...
@@ -644,7 +676,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/responses-0.25.6/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-genchanges -S  > ../responses_0.25.6-1_source.changes
+I: user script /srv/workspace/pbuilder/27074/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/27074/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/responses-0.25.6/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-genchanges -S  > ../responses_0.25.6-1_source.changes
 dpkg-buildpackage: info: source package responses
 dpkg-buildpackage: info: source version 0.25.6-1
 dpkg-buildpackage: info: source distribution unstable
@@ -669,8 +705,8 @@
 running build
 running build_py
 creating build/lib/responses
-copying responses/registries.py -> build/lib/responses
 copying responses/matchers.py -> build/lib/responses
+copying responses/registries.py -> build/lib/responses
 copying responses/__init__.py -> build/lib/responses
 copying responses/_recorder.py -> build/lib/responses
 copying responses/py.typed -> build/lib/responses
@@ -679,9 +715,9 @@
 running install_lib
 creating build/bdist.linux-i686/wheel
 creating build/bdist.linux-i686/wheel/responses
-copying build/lib/responses/registries.py -> build/bdist.linux-i686/wheel/./responses
 copying build/lib/responses/py.typed -> build/bdist.linux-i686/wheel/./responses
 copying build/lib/responses/matchers.py -> build/bdist.linux-i686/wheel/./responses
+copying build/lib/responses/registries.py -> build/bdist.linux-i686/wheel/./responses
 copying build/lib/responses/__init__.py -> build/bdist.linux-i686/wheel/./responses
 copying build/lib/responses/_recorder.py -> build/bdist.linux-i686/wheel/./responses
 running install_egg_info
@@ -700,7 +736,7 @@
 Copying responses.egg-info to build/bdist.linux-i686/wheel/./responses-0.25.6.egg-info
 running install_scripts
 creating build/bdist.linux-i686/wheel/responses-0.25.6.dist-info/WHEEL
-creating '/build/reproducible-path/responses-0.25.6/.pybuild/cpython3_3.12_responses/.tmp-dstj8iij/responses-0.25.6-py3-none-any.whl' and adding 'build/bdist.linux-i686/wheel' to it
+creating '/build/reproducible-path/responses-0.25.6/.pybuild/cpython3_3.12_responses/.tmp-bfy1xlpi/responses-0.25.6-py3-none-any.whl' and adding 'build/bdist.linux-i686/wheel' to it
 adding 'responses/__init__.py'
 adding 'responses/_recorder.py'
 adding 'responses/matchers.py'
@@ -725,9 +761,9 @@
 running install_lib
 creating build/bdist.linux-i686/wheel
 creating build/bdist.linux-i686/wheel/responses
-copying build/lib/responses/registries.py -> build/bdist.linux-i686/wheel/./responses
 copying build/lib/responses/py.typed -> build/bdist.linux-i686/wheel/./responses
 copying build/lib/responses/matchers.py -> build/bdist.linux-i686/wheel/./responses
+copying build/lib/responses/registries.py -> build/bdist.linux-i686/wheel/./responses
 copying build/lib/responses/__init__.py -> build/bdist.linux-i686/wheel/./responses
 copying build/lib/responses/_recorder.py -> build/bdist.linux-i686/wheel/./responses
 running install_egg_info
@@ -744,7 +780,7 @@
 Copying responses.egg-info to build/bdist.linux-i686/wheel/./responses-0.25.6.egg-info
 running install_scripts
 creating build/bdist.linux-i686/wheel/responses-0.25.6.dist-info/WHEEL
-creating '/build/reproducible-path/responses-0.25.6/.pybuild/cpython3_3.13_responses/.tmp-2soqrw50/responses-0.25.6-py3-none-any.whl' and adding 'build/bdist.linux-i686/wheel' to it
+creating '/build/reproducible-path/responses-0.25.6/.pybuild/cpython3_3.13_responses/.tmp-ee0h52y5/responses-0.25.6-py3-none-any.whl' and adding 'build/bdist.linux-i686/wheel' to it
 adding 'responses/__init__.py'
 adding 'responses/_recorder.py'
 adding 'responses/matchers.py'
@@ -772,7 +808,7 @@
 platform linux -- Python 3.12.8, pytest-8.3.4, pluggy-1.5.0
 rootdir: /build/reproducible-path/responses-0.25.6
 configfile: tox.ini
-plugins: pytest_httpserver-1.1.0, typeguard-4.4.1, asyncio-0.25.1
+plugins: typeguard-4.4.1, asyncio-0.25.1, pytest_httpserver-1.1.0
 asyncio: mode=Mode.STRICT, asyncio_default_fixture_loop_scope=None
 collected 219 items
 
@@ -803,7 +839,7 @@
     warn(
 
 -- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
-======================= 219 passed, 18 warnings in 6.23s =======================
+====================== 219 passed, 18 warnings in 13.17s =======================
 I: pybuild base:311: cd /build/reproducible-path/responses-0.25.6/.pybuild/cpython3_3.13_responses/build; python3.13 -m pytest /build/reproducible-path/responses-0.25.6
 /usr/lib/python3/dist-packages/pytest_asyncio/plugin.py:207: PytestDeprecationWarning: The configuration option "asyncio_default_fixture_loop_scope" is unset.
 The event loop scope for asynchronous fixtures will default to the fixture caching scope. Future versions of pytest-asyncio will default the loop scope for asynchronous fixtures to function scope. Set the default fixture loop scope explicitly in order to avoid unexpected behavior in the future. Valid fixture loop scopes are: "function", "class", "module", "package", "session"
@@ -813,7 +849,7 @@
 platform linux -- Python 3.13.1, pytest-8.3.4, pluggy-1.5.0
 rootdir: /build/reproducible-path/responses-0.25.6
 configfile: tox.ini
-plugins: pytest_httpserver-1.1.0, typeguard-4.4.1, asyncio-0.25.1
+plugins: typeguard-4.4.1, asyncio-0.25.1, pytest_httpserver-1.1.0
 asyncio: mode=Mode.STRICT, asyncio_default_fixture_loop_scope=None
 collected 219 items
 
@@ -844,7 +880,7 @@
     warn(
 
 -- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
-======================= 219 passed, 18 warnings in 6.05s =======================
+======================= 219 passed, 18 warnings in 9.97s =======================
 make[1]: Leaving directory '/build/reproducible-path/responses-0.25.6'
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--buildsystem=pybuild
@@ -875,12 +911,14 @@
 dpkg-buildpackage: info: binary-only upload (no source included)
 dpkg-genchanges: info: including full source code in upload
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/27074/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/27074/tmp/hooks/B01_cleanup finished
 I: unmounting dev/ptmx filesystem
 I: unmounting dev/pts filesystem
 I: unmounting dev/shm filesystem
 I: unmounting proc filesystem
 I: unmounting sys filesystem
 I: cleaning the build env 
-I: removing directory /srv/workspace/pbuilder/63246 and its subdirectories
-I: Current time: Mon Feb 23 06:17:20 -12 2026
-I: pbuilder-time-stamp: 1771870640
+I: removing directory /srv/workspace/pbuilder/27074 and its subdirectories
+I: Current time: Wed Jan 22 01:55:49 +14 2025
+I: pbuilder-time-stamp: 1737460549